Sponge cup



M. 5. LOWER Dec. 31, 1929.

SPONGE CUP Filed Feb. 15, 1928 INVENTOR. Mn VIN S. L o wsn,

ATTORNEYJ:

Patented Dec. 31,1929 1,741,783

UNITED S ATES" PATENT OFFICE a H MELVIN S. LOWER, OF BARBERTON, OHIO, ASSIGNOB TO THE SUN B'UBBEB COMPANY,

OF BARBERTON, OHIO, A CORPORATION OF OHIO sromm cor Application flled l'ebruary 1s, ieashsemi No. 254,887.

This invention relates to sponge cups such to without departing from the spirit thereof as are used for sealing envelopes, moistening or the scope or the appended claim. stamps, etc. What 1s claimed 1s 2- One object of the invention is to provide an A light sponge cup of resilient, vulcanized 5 unbreakable cup of resilient material, such as rubber adapted to removably receive a sponge rubber, provided with a vacuum cup base to and f rm wl han outwardly flared bottom h ld it i place n a d k or tabl when portion, the outslde bottom surface of which used, for example,-as a stamp moist r, is concave and the flared portion of which is Another object is to provide in the cup g y fleXlble w e eby h I IS P d bottom rings or protuberances for retaining a urface the alr 1s forced out of the cona qua mit f water i th bgttom f th u cavity and the cup retained on sand surface Another object is to provide a cup with an by tmospheric pressure, the 1ns1de bottom inwardly beveled upper edge so that water Surface of sand cup having protuberances scraped fi the ponge removal and inretain a quantity Of water in the G118,

sertion of the sponge in the cup will drain d the pp g of sald p being inwal' back into the cup. beveled- A further ob'ect is to provide a cup with MELVIN S; LOWER. an outwardly ared bottom to provide stav bility and also to provide a greater vacuum cup action. I

The foregoing and other objects are obtained-by the sponge cup shown in the accompanying drawings and described below.

Of the accompanying drawings, Figure 1 is a plan of a sponge cup embodyin the invention;

%igure 2 is a side elevation thereof; Figure 3 is a diametral section thereof with the sponge removed; and Figure 4.- is a perspective view of the sponge. Referring to the drawings, the numeral 10 designates a cup of resilient, vulcanized rubber formed with an outwardly flared bottom portion 11 to provide stability. The bottom surface of the cup is formed concave as indicated at 12 so as to provide a suction cup I whereby, by pressing the sponge cup on a desk or table, it will resist displacement.

The bottom of the cup on the inside is formed with rings or protuberances 13, 13 of rubber for retaining a quantity of water in the bottom of the cup and the upper edge of the cup is beveled inwardly as indicated at 14 to allow water squeezed or scraped ofi the sponge to drain back into the cup.

It will appear from the foregoing that a simple, but effective sponge. cup has been provided. It willalso be apparent that modifications of the invention -may be resorted 

